Old Church Slavonic (and similarly in modern Polish) has nasal vowels ę=ѧ=[eⁿ] and ǫ=ѫ=[oⁿ] plus their jotized versions. In accordancewith the evolution ofmost Slavic languages,​​we do not usenasals. There is simple application rule in order to nasal replacement: ę=ѧ → e and ǫ=ѫ → u.
(e.g. język → jezyk = language, bǫdǫ → budu = I will be)

However, Neoslavonicis an artificial language andthereforeallows differentkinds ofpronunciation.It will not bea big mistake,for example,ifRussians or anybody else will pronounceeand isoftly.

Of course, we acknowledge that thesoftpronunciation(e.g. Eastern-Slavic accent) is also acceptable.Thesewords have the same level of understandability regardlessof whether theyare written and pronouncedsoftlyorhardly.
(e.g. kost = a bone, [kɔst / kɔsc]; on jest = he is, [ɔn jɛst / ɔn jɛsc])

palatalization and euphonySlaviclanguages ​​areknown by the consonant softening in some situations. This process is called palatalization. Neoslavonicit has alsoincluded, but in a verylimited way of only three regular rules related with the soft consonants č, š, ž as

In order to sound almost like an ordinary natural Slavic language, we need to improve some artificially generated sound combinations caused by application of some grammatical endings. There are only three euphony rules related with the same soft consonants č, š, žas